The network of cycleways through Sydney's CBD will be completed and road speeds limited to 40km/h in parts of the city, the O'Farrell government announced on Wednesday morning.

A "City Centre Access Strategy", released by Transport Minister Gladys Berejiklian and Roads Minister Duncan Gay, also says buses will be channelled into a few east-west and north-south corridors through the city, and the government will try to make more cars use the Cross City Tunnel to get traffic off the streets.

In large part, the strategy endorses the transport priorities of Lord Mayor Clover Moore, who has campaigned for more separated cycleways and for a lower speed limit in built-up areas.